O12.0Non-Billable (Header)Gestational edemaChild CodesO12.00Gestational edema, unspecified trimesterO12.01Gestational edema, first trimesterO12.02Gestational edema, second trimesterO12.03Gestational edema, third trimesterO12.04Gestational edema, complicating childbirthO12.05Gestational edema, complicating the puerperiumCode Hierarchy└O12Gestational [pregnancy-induced] edema and proteinuria without hypertension└O12.0Gestational edema└O12.0Gestational edema